3kaarhus.dk

📜 Historical scan 2026-06-19 00:56:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3kaarhus.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.2.16 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by 3kaarhus-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 197ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 289ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.50.2.16	3600s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 223ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	360s	3kaarhus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 52.101.68.15 52.101.68.21 52.101.68.39 52.101.73.4	mail-db9pr02cu00204.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1036ms

TXT Record
v=spf1 ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (3kaarhus.dk)
~all (soft fail)	v=spf1 ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.3kaarhus.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:ipm4wwk@ar.glockapps.com; ruf=mailto:ipm4wwk@fr.glockapps.com; adkim=s; aspf=s; fo=1; sp=reject;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 23:24:56

www CNAME	app-dofweb-prod-001.azurewebsites.net (all on azurewebsites.net) → 20.50.2.16 (AS8075)
www vs bare domain	Same network 3kaarhus.dk: 20.50.2.16 (AS8075) www.3kaarhus.dk: 20.50.2.16 (AS8075)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-3kaarhus-dk._domainkey.danskoplysningsforbund.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

1676ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

215ms

Field	Value
Serial	2023111704
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

197ms

289ms

223ms

AAAA

194ms

TXT

1036ms

CAA

169ms

HTTPS

262ms

TLSA

687ms

SOA

215ms

MTA-STS

479ms

DNSSEC

1676ms

SRV

722ms

Total

5770ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 08:42:24	1068ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 18:55:55	1070ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 10:44:26	1530ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 19:07:34	730ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 16:00:09	1064ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 00:56:33 shown	5770ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:42:43	692ms	2 NS 1 A 1 MX	🔒 Secure